<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>Book Query:</h1>
<hr>
<form action="/query" method="get">
    <input name="author" placeholder="please input author" autofocus>
    <button type="submit">Query</button>
</form>
</body>
</html>